American Aircraft Also Conduct Third Airdrop of Food and Water for Yazidis Stranded on Mountain

WASHINGTON—The U.S. military launched four airstrikes Saturday in northern Iraq designed to defend members of the Yazidi religious minority who were coming under attack from Islamic extremists, U.S. officials said.

American aircraft also conducted a third airdrop of food and water for thousands of Yazidis stranded on Mount Sinjar, officials said. One C-17 and two C-130 aircraft dropped 3,800 gallons of drinking water and 16,128...